CN101080548B - A method and a device for sealing a void incompletely filled with a cast material - Google Patents

A method and a device for sealing a void incompletely filled with a cast material Download PDF

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Publication number
CN101080548B
CN101080548B CN2005800432358A CN200580043235A CN101080548B CN 101080548 B CN101080548 B CN 101080548B CN 2005800432358 A CN2005800432358 A CN 2005800432358A CN 200580043235 A CN200580043235 A CN 200580043235A CN 101080548 B CN101080548 B CN 101080548B
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CN
China
Prior art keywords
boring
space
tubular structure
mould material
fluid
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Expired - Fee Related
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CN2005800432358A
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Chinese (zh)
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CN101080548A (en
Inventor
R·弗里耶
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Halliburton Energy Services Inc
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Halliburton Energy Services Inc
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve

Abstract

A method and a device for sealing a void (12) incompletely filled with a cast material (10), in which an expandable material (6) is placed in the void (12) which is to be filled with a cast material (10), the expandable material (6) expanding, when expanding after the cast material (10) has cured, into spaces (16) which are not filled with cast material (10).

Description

The method in the space in well system and the sealing boring
Technical field
The present invention relates to a kind of method that complete filling not has the dead zone of mould material that is used to seal.Say that more specifically this method comprises expandable material is positioned in the dead zone of mould material to be filled, this expandable material solidifies the back when expanding at mould material, and this expandable material can expand in the cavity that is not filled with mould material.As well-known in the petroleum recovery, this method is specially adapted to seal the space (opening) around in the annulus of cast housing.The present invention also comprises a kind of device of the present invention that is used to realize.
Background technology
In cement being poured into boring, during annular space between housing and formation wall, when particularly relating to the well of approximate horizontal, possibly be difficult to maybe can not realize utilizing this annular space of mould material complete filling.
The reason that produces this situation is owing to be difficult to the fluid that is present in the housing downside is discharged fully basically.This fluid can comprise drilling fluid.
Be present in the said annular space at mould material setting up period fluid, particularly fluid can be present in the annular space bottom, can form like this along the passage of boring, thus and the extensible far zones of different that connects boring of this passage.
Obviously, such passage is undesirable, flows because uncontrollable fluid possibly take place in this passage.For example, the formation water from a zone may flow near oil-producing area.
Be well known that and utilize expandable material to come enclosed annular space.Therefore, the patent No. is that 312478 Norw P discloses a kind of packer of being processed by expandable material.After this packer is placed on the desired position, constitutes the material meeting absorption fluids of packer, and then expand, until annular space is sealed.
Summary of the invention
The objective of the invention is to remedy or reduce at least one shortcoming of the prior art.
According to the present invention, be utilized in the characteristic that details in following manual and claims, can realize this purpose.
According to the present invention,, can realize sealing the dead zone that complete filling not has mould material through expandable material being put into the dead zone of mould material to be filled.So after mould material solidified, this expandable material expand in the space that is not filled with mould material through replacing fluid usually.
According to an aspect of the present invention; A kind of well system is provided; This well system comprises: be used for expanding into the device in the space of boring; Said space is limited mould material at least in part; Said mould material is set between said boring and the said device and with both and contacts, and wherein said device comprises the annular element on the tubular structure that is arranged in the said boring, and said annular element contain can in response to said well system in contacting of fluid and be stretched over the expandable material of swelling state from retracted mode.
For example, when housing in boring when waiting to insert cement, the stopper (plug) of at least one sleeve shaped is arranged in housing makes said stopper around housing before getting into boring.
When housing gets into the precalculated position in holing, be filled with drilling fluid in the annular space around housing, expandable material makes housing placed in the middle in boring to a certain extent.
When the mould material that is the concrete form usually flowed in the annular space subsequently, owing to be filled with concrete in the zone, the fluid that is present in the annular space was substituted basically.
Yet, be difficult to all fluids in the annular space are all discharged, and some fluid accumulates in the bottom of annular space.After cast, the plug portion of the sleeve shaped that is made up of expandable material is in this fluid, and is partially embedded in the mould material.
For example owing to expand when contact with fluid, or because diffuse fluid gets in the space of employing expandable material, expandable material can expand.Adjacent fluid is replaced by expandable material, and the effect that is produced thus is: for example sealing is in the fluid passage of ring annular space bottom, territory.
But expandable material for example can be formed by compressed intumescent material before in being arranged at boring or foamed diffusion material, and As time goes on the cavity in these materials is filled with fluid, material so and expand.Expandable material can be designed to when contacting with for example water, oil, gas body or other suitable material, expand.
Expandable material can be selected from the group that for example comprises elastomeric polymer; Elastomeric polymer is for example: EPDM rubber, phenylethylene/butadiene, natural rubber, ethylene/propene monomer rubber (ethylene/propylene monomer rubber), styrene/propylene/diene monomer rubber (styrene/propylene/diene monomer rubber), ethylene/acetic acid ethylene rubber, hydrogenated acrylonitrile/butadiene rubber; Acrylonitrile/butadiene rubber; Isoprene rubber, chloroprene rubber or polynorbornene.Intumescent material also can comprise the mixture of above-mentioned material, can add material other dissolving or that mix, and for example cellulose fibre is US 4,240 like the patent No., described in 800 the United States Patent (USP).Other alternative can be the rubber with following material mechanical mixture, these materials such as polyvinyl chloride, methyl methacrylate, acrylonitrile, ethyl acetate, or dilatable other polymer when contacting with oil.
Diffusible material can be selected from the group that comprises nitrile rubber.As stated, but diffusion material process by elastomeric material with quite most enclosed cavity, this material allows fluid to diffuse in the chamber through this material.
Expandable material can have one or more stiffeners that for example are the cloth form.
Description of drawings
Hereinafter will be described the non-limiting example of method for optimizing shown in the accompanying schematic figure and embodiment, wherein:
Fig. 1 shows the housing that is provided with the sleeve that is made up of expandable material, and this housing is arranged in the boring of the approximate horizontal in soil, and mould material has been filled in the annular space between housing and the drill hole wall;
Fig. 2 shows the device among the Fig. 1 after after a while, and expandable material is the space in the sealed cast material;
Fig. 3 shows the I-I cross section of Fig. 1;
Fig. 4 shows the II-II cross section of Fig. 2.
The specific embodiment
In the accompanying drawings, Reference numeral 1 expression is positioned at the housing of the boring 2 on stratum 4.
The sleeve 6 that housing 1 is made up of some expandable materials around.
Before housing gets into boring 2, sleeve 6 is installed on the housing 1, sleeve 6 helps housing 1 can not be arranged at fully on the bottom of boring 2 like this.
Bestly be that sleeve 6 is provided with is outside permeable, be preferably durable textile material 8.This material also can contain the stiffener that is metallic object or synthetic fibers form.The expansile inhibition of 8 pairs of sleeves 6 of permeable textile material only reaches inapparent degree.
Referring to Fig. 1, in housing 1 being positioned over boring 2 after, this be in housing 1 for concrete mould material 10 is filled into and hole between 2, in the form of a ring in the dead zone 12 in space.
Can find out from Fig. 1 and Fig. 3 because some drilling fluid 14 is present in the bottom of annular space 12, so in the annulus 12 not complete filling mould material 10 is arranged.
Be not to form and allow mobile passage 16 along boring 2 by the influence of mould material 10 substituted drilling fluids 14.
After after a while, for example receive the influence of drilling fluid 14, the expandable material that constitutes sleeve 6 expands, and replaces the drilling fluid 14 between sleeve 6 and boring 2, referring to Fig. 2 and Fig. 4.The expandable material that constitutes now sleeve 6 just with hole 2 wall adjacency, thereby fluid-encapsulated mobile vertical passage 16.

Claims (12)

1. well system comprises:
Be used for expanding into the device in the space of boring, said space is limited mould material at least in part, and said mould material is set between said boring and the said device and with both and contacts,
Wherein said device comprises the annular element on the tubular structure that is arranged in the said boring, and said annular element contain can in response to said well system in contacting of fluid and be stretched over the expandable material of swelling state from retracted mode.
2. the system of claim 1, wherein, said space is limited on the wall of said boring at least in part.
3. the system of claim 1, wherein, said space is limited said tubular structure at least in part.
4. the system of claim 1, wherein, said space keeps fluid at least in part.
5. the system of claim 1, wherein, said expandable material with said space in fluid contact when reacting, be stretched over swelling state from retracted mode.
6. the system of claim 1, wherein, said mould material comprises the concrete of sclerosis.
7. the system of claim 1, wherein, said space comprises the passage that prolongs, said passage is limited on the wall of said mould material, said tubular structure and said boring at least.
8. method that is used for sealing the space of boring, said space placing the mould material in the said boring to limit, said method comprising the steps of at least in part:
At least one annular element is set on tubular structure, and said annular element contains the expandable material that can be stretched over swelling state from retracted mode;
Said tubular structure is installed in the said boring;
Subsequently said mould material is arranged in the zone that external surface limited the wall of said boring and said tubular structure;
Said expandable material may be extended to the wall of said boring to be contacted.
9. method as claimed in claim 8 wherein, is provided with step and also comprises along the length of said tubular structure and with the interval that separates a plurality of annular elements are set.
10. method as claimed in claim 8, wherein, said annular element be suitable for said space in fluid contact when reacting, be stretched over swelling state from retracted mode.
11. method as claimed in claim 8, wherein, after said mould material sclerosis, said expandable material extends in the said space.
12. method as claimed in claim 8, wherein, said space comprises the passage of prolongation, and said passage is limited on the wall of said mould material, said tubular structure and said boring at least.
CN2005800432358A 2004-12-16 2005-12-12 A method and a device for sealing a void incompletely filled with a cast material Expired - Fee Related CN101080548B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20045478A NO322718B1 (en) 2004-12-16 2004-12-16 Method and apparatus for sealing an incompletely filled compartment with stop pulp
NO20045478 2004-12-16
PCT/NO2005/000456 WO2006065144A1 (en) 2004-12-16 2005-12-12 A method and a device for sealing a void incompletely filled with a cast material

Publications (2)

Publication Number Publication Date
CN101080548A CN101080548A (en) 2007-11-28
CN101080548B true CN101080548B (en) 2012-06-27

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US (2) US7946351B2 (en)
EP (1) EP1825099B2 (en)
CN (1) CN101080548B (en)
AT (1) ATE534802T1 (en)
AU (1) AU2005317308B2 (en)
BR (1) BRPI0519115B1 (en)
CA (1) CA2557830C (en)
DK (1) DK1825099T3 (en)
MX (1) MX2007007284A (en)
NO (1) NO322718B1 (en)
PL (1) PL1825099T3 (en)
WO (1) WO2006065144A1 (en)

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CN101080548A (en) 2007-11-28
DK1825099T3 (en) 2012-02-20
US20070227734A1 (en) 2007-10-04
MX2007007284A (en) 2007-08-15
US8726992B2 (en) 2014-05-20
PL1825099T3 (en) 2012-04-30
BRPI0519115A2 (en) 2008-12-23
WO2006065144A1 (en) 2006-06-22
EP1825099A4 (en) 2010-09-22
AU2005317308B2 (en) 2010-04-01
EP1825099B2 (en) 2021-06-09
NO322718B1 (en) 2006-12-04
NO20045478D0 (en) 2004-12-16
BRPI0519115B1 (en) 2018-01-23
CA2557830A1 (en) 2006-06-22
EP1825099A1 (en) 2007-08-29
US20110180264A1 (en) 2011-07-28
US7946351B2 (en) 2011-05-24
NO20045478L (en) 2006-06-19
AU2005317308A1 (en) 2006-06-22
EP1825099B1 (en) 2011-11-23
CA2557830C (en) 2009-02-03
ATE534802T1 (en) 2011-12-15

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